Car roof



Sept. 1, 1931. c. D. BoNsALL 1,821,904

v CAR ROOF Filed July l1. 1930 Patented Sept. 1, 1931 UNITED 4s'rix'liis PATENT oFFicE CHARLES DAVID BONSALL, PITTSBURGH, PENNSYLVANIA, ASSIGNOR T0 P.` H. MURPHY COMPANY, OF NEW-KENSINGTON, PENNSYLVANIA, A CORPORATION OF can' `Roer' Appncatian flied Juiy ii, 1930. serial No. 467,261.

This invention relates to metalfcar roofs of the type wherein the metal'roofsheets are provided along their adj acentmargins with raised panels and are connected by weatherproofing seam caps having outstanding base flanges thatl rest on said raised. panels. The principal obj ect of the present invention is to provide for maintaining the raised marginal panels of the sheets in contact with the base flanges of the seam caps and thereby' increase the weathcrproofing qualities of the roof. Other objects are simplicity and cheapness of construction, fewness of parts and ease of assembly. The invention consists in the parts and in the combinations and arrangements of parts hereinafter described andyclaimed.

In the accompanying drawings, Vwhich forms part of this specification and wherein like symbols referto like parts wherevert-hey occur,

Fig. l is aplan view of a portion of the' car roof embodying my invention,

Fig. 2. is an enlarged transverse crosssecf tion throughvone-h'alf ofthe roof, on the line Figs. 3 and 4 are transverse cross-sections through a roof seam' and the carline located therebelow on the lines 3-3 and t-A, respectively, inFigj2; and

Fig. 5 'is a `plan view of one of the boltsupporting straps. 'Y

Referring to the accompanying drawings, my invention is shown in connection with a car roof frameor substructure' comprising ""Z-bar side plates A' connected by ohannel-' shaped carlines B having outstanding flanges lat the tops of their side walls. The Z-barj side plates 'A are arranged withtheir `webs horizontal and with one flange in and extending upwardly; and the ends of the carlines B are rigidly secured to the respective side plates by means of carline brackets C that have channel-shaped body portions adapted to receive the ends of said carlines and depending end flanges that are riveted flatwise to the upstanding inner flanges of said side plates.

Metal roof sheets D extend from side to cia strips E that are removably secured flatwise to the outer faces of the upstanding inner flanges of the side plates. The roof sheets D are provided with depending eaves flanges 2 that overhang the outer edgesof the fascia strips and terminate at their eaves ends in inturned flanges that are spaced away from said fascia strips, whereby said sheets are independently movable.` The roof sheets D are spaced Vapart along their adjacent side margins, which are offset upwardly above the carlines, forming raised panels 3 at the sides a of the sheets. The raised side panels 3 of the roof sheets extend from end to end thereof and the free marginal edges of said panels are bent up to form upstanding flanges 4 `at the side marginal edges of the sheets. Throughout the greaterportion of their length,` the side marginal flanges 4L of thereof sheets are of substantially uniform depths, but the end i *portionsof said flanges slope downwardly toward the plane of the sheets adj acentto the eaves end thereof. a 'Y The roof sheets are spaced apart on op-` posite sides of the longitudinal VVcenter lines of thecarlines with their raised sidemarginal panels 3 spaced above the outstanding top flanges of said carlines. The roof sheets are looselyk connected along their adjacent side margins by Weatherproofingseam caps F of substantially inverted channel-shaped section which extendv from eaves tov eaves 'of the car and are provided at the lower edges of their side walls with outstanding base flanges 5 that rest on the raised side marginal panels 3 of adjacent sheets. The seam caps F are provided at their eaves ends with depending.

flanges 6 that overhang and are spaced from the eaves corners ofadjacent roof sheets and terminate at their lower ends in inturned flanges'which extend beneath and are spaced below the inturned lower ends of the depending eaves'flanges 2 offsaid roof sheets.- The seamV caps F are preferably made in three sections; namely, duplicate end sections 7, which extend from eavesto points adjacent to the ridge, and a ridge or intermediate secf tion 8, which overlaps the ridge endportions side of the cark betweencarlines with their" eaves end portions supported on wooden fas# of theV two end sections for asuitable distance In order to prevent the raised side marginal panels 3 of the roof sheets D from springing away from the base flanges 5 of the seam caps F and thus causing' the roof to leak, said panels are supported on wooden filler strips 9/ that rest on the carlines B and extend: longitudinally thereof from side plate to 'side` plate. The wooden filler strips 9, which. are of a thickness corresponding to distance betuf'een'the' carlines and raised panels-*of the* roofsheet's, cover the channels in the 'carlinesg and are secured to the outstanding top flanges thereof preferably by means of bolts l0.

rlie seam caps F are held down on raised Y panels of the sheets and"sai`dpanel's are, in turn, held down on the ewooden-filler strips' by lmeans of lupright bolts Grv located adjacent I tothe ridge and eaves ofthev car. Each of said bolts is supported at its lower end on a strap ll disposed transversely of the carline 1 -with its Vends rigidlysecured in depressions "faces lof `said strap. Each "bolt 'entends up-y la provided therefor in the outstanding top flanges l of thefcarline. The portion of the strap that spans thev chaniielof the Ycarliiie isprovided with'a vertical hole adapted' to loosely receive the threadedv lower end of they bolt; Each ybolt is'secured to the ydepressed v portion of its supporting strap byY means of nuts lZfand 13 that are threaded on the bolt in Vposition to bear against thetop and bottom wardly through a hole 9a providedy therefor thellerjstrip 9 and i'sprovidednear its upperend with a collar 14 forming a' shoulder'V adapted to support the webof .the seam capjv collar extends 'through anY opening in Y said web'and 'isthreaded' to' receive a nut l5 which serves to clamp said cap to said' shoulder. The bolt receiving portionV of vthe strap :is *offset downwardly in Vthev 'channel ofthe carline 'iso that 'any rwater thatl runs'f down the' boltfwill,be':prevented'froin-entering the carfdowiilon saidsiipportsfand the,- base flanges;

over the sides vof' the carlines.

,In i asise'mblingV the parts,4

the fupper' nut 12 is. threaded'` on -the bolt' whose threadedlwer @diseanded downwardly through VtheV openingfthe depressed middle portion offt'he stifzip;fafrteijv which't'he lowfer'nu't lisltightened clainp` 'the boltto the strap.

* Runningboads lGfeXtend longitudinally lb of the Vcar at their ridge vand are 4supported on'an'dv secured tolt'l'i'e lateralftopV flanges of,y Zibar 'running 'board saddles 1 7, whose lat- `veral base flanges rest on theridge sections 8 'l vvof the seam capsF and are rigidly secured thereto by the bolts which secure the'ridgeVA portionsof'said'seam caps to theca'rlines.

By thelarrangei'nent Adescribed,'the raised panels ofth'e roofjshe'etsA serve'to locate the above the' xgeneral drainage level of the-sheets andthus overcomes thetendenyfor the Wil.; l ter to' lodge in "saidjointsy and 'produce rivistiY Leakage between said Vjoints -i's further pre-'lA Y necting adjacent 'sheetsu down onjs'aid supports and 'the' ""pr'vided along their adjacent margins With raised panels located above said frame members,"'mein`bers'"interposed between the tops 80 of Y-said frame members and the raised marginal panels of theroof sheets for support-1` ingsaid panels, seam caps connecting' adjacent sheets and' having base llangesresting on' the raised marginal panels thereof, and con-I 85, ne ctions between the` said frame members and seam capsv foi"- holding the raised marginal panels of the roof sheets downoii saidfsupportsand tliebase flanges of the yseam caps down on said raised panels.

2. kA car comprising a substructure having frame members of y substantially l channel#l shaped crosslsection,' roof sheets spanning fromlframemember to frame member'and provided along their adjacent margins with 'raised panels locatedabove Ysaid frame members, members interposed between the tops of said frainemembersand`tlie "raised marginal panels of the roof sheets .for supporting said'ji panels,` the channelsl in said frame members 10h97. @reime upwardly and. being ,Covered by" .the fpanel supporting members, seamfcaps con-.

e e e ,i ad. having basa Heeses .Festlegen the eased marginalranels thereof, and connections raisedwimarginal panels of the 'roof sheets@- of themseani caps down on,lsaibraisedpanels;

A Cal' @empalme@Substrutule haring 110 frame members of substantially Av chani'iel-u shaped cross-section, roof sheets spanning fronil'fraine memberto franiemembers'and i ,provided along their adj acentmarginsiwith' raised` panelsjlocated above said.' franieinenif l 111,5

ers, members interposed between theto s:

i of 'said frame ineinbefrs'and the, raised I navr.- l ginal panels o f the roof sheets forsupvportingl saidj'i'anelsfthe channelsY iii'saidfranre inembersope'ning upwardly and beingmcovered 120 by the lpanel supportingmembers, seam caps 5" connecting adjacent sheetsand having base" flanges Aresting on the?rai'sed'marginal panels thereof, and 'connections be'tvvf-en*the said` f j frame 'members and seam caps lfor holding.l i125 "joints betweenfthesheets andthe seam caps the raised/marginal panelsof the roof sheets) base of the sea-m caps down on said raised panels," said `e'nne"ctionsfeoniprising:'upright boltlsg,L @maar ma; ends 'attenuare @hagm betweenfthepsaid iA flllle members and seam caps forho'lding the nels of said frame members and their upper ends secured to said seam caps.

4. A car roof comprising side plates, carlines connecting said side plates, roof sheets extending transversely of the car between carlines and provided along their adjacent side margins with raised panels located above said carlines, means interposed between the carlines and the raised side marginal panels of the roof sheets for supporting said panels, seam covers connecting adjacent sheets and having base flanges resting on the raised marginal panels thereof, and connections between the carlines and seam covers for holding the raised side marginal panels of the roof sheets down on the supports and the base flanges of the seam covers down on said raised panels.

5. A car roof comprising side plates, carlines connecting said side plates, said carlines being of substantially channel-shaped cross-section with outstanding flanges at the tops of their side walls, roof sheets extending transversely of the car between carlines and provided along their adjacent side margins with raised panels located above the top flanges of said carlines, filler strips interposed between the top flanges of said carlines and the raised side marginal panels of the roof sheets for supporting said panels, seam caps connecting adjacent sheets and having base flanges resting on the raised marginal panels thereof, and connections between said carlines and seam caps for holding the raised side marginal panels of the roof sheets down on the ller strips and the base flanges of the seam caps down on said raised panels. Y

6. A-car roof comprising side plates, carlines connecting said side plates, saidV carlines being of substantially channel-shaped cross-section with outstanding flanges at the tops of their side walls, roof sheets extending transversely of the car between carlines and provided along their adjacent side margins with raised panels located above the top flanges of said carlines, filler strips interposed between the top flanges of said carlinesand the raised side marginal panels of the roof sheets for supporting said panels, seam caps connecting adjacent sheets and having base flanges resting on the raised marginal panels thereof, and connections between said carlines and seam caps for holding the raised side marginal panels of the roof sheets down on the filler strips and the base flanges of the seam caps down on said raised panels, said connections comprising upright bolts having their upper ends removably secured to said seam covers and their lower ends adjustably secured to said carlines.

7 A car roof comprising side plates, carlines connecting said side plates, said carlines being of substantially channel-shaped cross-section with outstanding flanges at the tops of their side walls, roof sheets extending transversely of the car between carlines and provided along their adjacent side margins with raised panels located above said carlines, wooden filler strips interposed between the carlines and the raised side marginal panels of the roof sheets for supporting said panels, seam caps connecting adja- Y cent sheets and having base flanges resting on the raised marginal panels thereof, straps extending transversely of said carlines across the tops thereof, upright bolts adjustably supported at their lower ends on said straps, and nuts on the upper end of said bolts for securing the seam caps thereto.

8. A car roof comprising side plates, carlines connecting said side plates, said carlines being of substantially channel-shaped crosssection with outstanding flanges at the tops of their side walls, roof sheets extending transversely of the car between carlines and provided along their adjacent side margins with raised panels located above the outstanding top flanges of said carlines, filler strips interposed between the carlines and raised side marginal panels of the roof sheets for supporting said panels, inverted channel-shaped seam caps loosely connecting adjacent sheets and having base flanges resting on the raised marginal panels thereof, straps extending across the tops of the carlines with their ends secured to the top flanges thereof, upright bolts having threaded lower ends extending through openings provided therefor in said straps, nuts threaded on said lower portions of said bolts and adapted to bear against the top and bottom surfaces of said straps, the upper portions of said bolts being threaded and extending through open- 105 ings provided therefor in the tops of said seam caps, said bolts being provided below the tops of said caps with shoulders, and nuts on the upper ends of said bolts for clamping the tops of said seam'caps to said shoulders. 110

9. A car roof comprisin a substructure having frame members, roo sheets spanning from frame member to frame member with their adjacent margins spaced above said frame members, members interposed between 115 the tops of said frame members and the margins of the roof sheets for supporting said margins, seam caps connecting adjacent sheets and having base flanges resting on the margins thereof, and connections between 12o said frame members and the seam caps for holding the margins of the'roof sheets down on said supports and the base flanges of the seam caps down on said margins.

Signed at New Kensington, Pennsylvania, 125 this 7th day ofV July, 1930.

CHARLES DAVID BONSALL. 

